1. Center for Mental Healthcare and Outcomes Research, Central Arkansas Veterans Affairs Healthcare System, North Little Rock, Arkansas, USA
2. Veterans Affairs South Central Mental Illness Research, Education, and Clinical Center, Central Arkansas Veterans Healthcare System, North Little Rock, Arkansas, USA
3. Department of Psychiatry, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
4. College of Nursing, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA